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Both of these branches of evolutionary science, are, in my opinion, in the closest causal connection; this arises from the reciprocal action of the laws of heredity and adaptation.
I established the opposite view, that this history of the embryo (ontogeny) must be completed by a second, equally valuable, and closely connected branch of thought - the history of race (phylogeny).
Politics is applied biology.
The real cause of personal existence is not the favor of the Almighty, but the sexual l... (more Ernst Haeckel quotes)
| Art Forms in Nature: The Prints of Ernst Haeckel (Monographs) by Ernst Haeckel, Olaf Breidbach, Richard Hartmann, and Irenaeus Eibl-Eibesfeldt | |
| Visions of Nature: The Art And Science of Ernst Haeckel by Olaf Breidbach | |
| Evolution: Eine Ubersicht sieben Jahrzehnte nach Ernst Haeckel (Haeckel-Bucherei) by Heinrich Karl Erben |